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Quantify Retinal Structure in High-altitude Residents with and Without High Altitude Polycythemia by Jinlan Ma; Haoyu Niu; Changjing Han; Yi Qu is a Medicine article available to read on EtoBox.

What is Quantify Retinal Structure in High-altitude Residents with and Without High Altitude Polycythemia about?

## Abstract ## Background To assess retinal structural parameters in high-altitude (HA) residents with and without high altitude polycythemia (HAPC) and to elucidate the relationship between retinal structural parameters and hemoglobin (HGB). ## Methods This cross-sectional study included 55 HAPC patients and 52 healthy HA residents. Retinal structural parameters included retinal nerve fiber layer (RNFL) thickness, optic nerve head (ONH) parameters and retinal vessel diameter. RNFL thickness were acquired from spectral domain optical coherence tomography (SD-OCT) built-in software. ONH parameters including neuroretina rim height, cup area, disc area and vertical cup/disc ratio were obtained by OCT built-in software and ImageJ software. Retinal vessel measurements including central retinal artery equivalent (CRAE), central retinal vein equivalent (CRVE) and AVR (artery/vein ratio) were calculated by revised formulas for summarizing retinal vessel diameters. All parameters were compared between HAPC group versus healthy HA group. The associations between retinal parameters and HGB were assessed by Pearson correlation analyses. ## Results In comparison of HAPC group versus healthy HA

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Author

Jinlan Ma; Haoyu Niu; Changjing Han; Yi Qu

Publisher

Springer Science and Business Media LLC

Published

2023

Language

EN

Field

Medicine (Health Sciences)